Improvement in apparatus for automatically regulating the flame of gas-burners



|. HERZBERG a A. HERZBER'G.

LPaented Apri|16,1872.j

Imm/711mg, .Mmm JH N M MM of the apparatus in the drawing.

UNITED S'rn'rns ISAAC HEREZBERG AND ABRAM HERZBERG, 0F PHILADELPHIA, PA.

IMPROVEMENT IN APPARATUS FOR AUTOMATICALLY REGULATiNG THE FLAME 0F GAS-BURNERS.

Specification forming part of Letters Patent N o. 125,679, dated April 16, 1872.

specification, in which- Figure l represents, in perspective, our invention as applied to a gas-burner, and Fig. 2 represents a front view of the same.

Similar letters of reference, where they occur in the separate figures, denote like partsA Our invention relates, irst,.to a combination of adjustable dial with a clock mechanism, by

. the gas-llame, as may be desired; and our invention relates further to the combination of a cogged segment, operated from or by the clock or driving mechanism, with a cogged pinion or wheel on the gas-cock, so that the latter may be operated by the former, as will be eX- plained.

To enable others skilled in the art to make and use our invention, we will proceed to describe the same with reference to the drawing.

A represents any ordinary gas-tube, and B a burner connected therewith. On this gastube or pipe A is arranged a clock or similar mechanism, C, -which is driven by the expansion of a coiled or other spring. This mechan` ism, being of a common and well-known construction and shown in the drawing, need not be elaborately described. The spindle a, however, which, in anordinary clock, is the one upon which the hour-hand is placed, and there makes one revolution in twelve hours, in our construction is so geared as to make but one revolution in twenty-four hours. On the spindle a is placed so as to turn with it a dial-plate or time-table, b, which has upon it hour or divisionsofanhour marks c,- upon the perimeter of this time-table wheel there is a cam-plane, d, for a purpose to be presently described. Over the spindle a, but so that it may be turned independent of the. spindle when so desired,

there is placed an indicator plate or wheel, D, having a pointer, e, upon it, and a portion of its perimeter cut away, as seen at f. There is also a concentric slot, g, cut through this indicator-plate D, through which a set-screw, i, passes so as to admit of an adjustment of the pointer e to any special hour-mark on the dialplate or time-table b, and then to hold the two plates together so that they shall revolve together with the clock or driving-gear or mechanism. On a shaft, h, there is arranged a cogged segment, j, which gears into a pinion, it, on the gas-cock; and around this shaft there is a spring, l, the tendency of which is to so turn said shaft as to cause it, through the cogged segment j and pinion lo, to keep the gascock open and the supply of gas on. On the shaft h there is also a bent arm or lever, m, which the spring Z keeps against the perime* ters of the dial and indicatorplates b D, so

that the cam d on the time-table plate, as wellV as the radial shoulder n on the indi catorplate shall turn or allow to be turned the shaft h, and through it turn or allow to be turned the gascock so as to shut off or let on the flow of gas tothe burner.

The figures at c on the dialplate represent the number of hours that it is desired to let the gas burn with a full ow or a greater iiow -as, for instance, nine, ten, eleven, or twelve hours, or less or more; and when the space from d to a on the right of the time-table and indicator plates is in contact with the bent or crank arm or lever m the gas-cock is open 5 but when that portion of said plates between n andl cl on the left of lsaid plates is in contact with said arm or lever m, then the cock is turned so as to shut off the most of the flow of gas, keeping just flame enough to prevent it from being eX- tinguished, or, in other words, the space between cl n, as shown on the right of the plates, represents the time that the gas is let on and burns brightly, and the space from a to el toward the left represents the time that the gas is shut oif or reduced in volume. As this distance from d to n, and consequently from n to d, can be varied and set by the set-screw when adjusted, the apparatus itself will allow the gas to burn brightlyfor instance, through the night of, say, eight, nine, ten, eleven, or twelve hours-and at the end of the time for @EEG-L which it Was adjusted it will turn the gas-cock and eut O' the full supply, and again, at a fixed time or hour, turn it on again.

By this contrivance, in stores and other places Where gas is burned all night, the gas is shut off or regulated to burn very low at any hour fixed in the morning, and so continue until turned on again in the evening-as, for instance, on Sundays, when such places of business are not visited by the owners or employs.

Having thus fully described our invention, what We claim therein as new, and desire to secure by Letters Patent, is-

1. The combination of the plates b D and their shoulders d n for regulating and defining the periods at which a gas-cock shall be opened and closed to regulate the flow of gas and ame or light, substantially as described.

2. We also claim, in combination with the plates I) D and their appliances, the shaft h with its bent arm or lever m, spring l, and cogged segment j for the purpose of turning or allowing to be turned the gas-cock for shutting oft' or letting on, and thus regulating the flow of gas to the burner, substantially as described.

3. Ve also claim, in combination with the plates b D, the stem a, when arranged to lnake one entire revolution in tWenty-'ourhours, as and for the purpose described.

ISAAC HERZBERG. ABRAM HERZBERG.

Witnesses NORMAN H. STEVENS, WM. H. CoUsLAND. 

